Merge branch 'jk/replace-perl-in-built-scripts'

* jk/replace-perl-in-built-scripts:
  use @@PERL@@ in built scripts

git-submodule.sh

@@ -156,7 +156,7 @@ module_list()
 		git ls-files -z --error-unmatch --stage -- "$@" ||
 		echo "unmatched pathspec exists"
 	) |
-	perl -e '
+	@@PERL@@ -e '
 	my %unmerged = ();
 	my ($null_sha1) = ("0" x 40);
 	my @out = ();